493465909 has 2 divisors, whose sum is σ = 493465910. Its totient is φ = 493465908.

The previous prime is 493465883. The next prime is 493465913. The reversal of 493465909 is 909564394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272349009 + 221116900 = 16503^2 + 14870^2 .

It is a cyclic number.

It is not a de Polignac number, because 493465909 - 2¹⁵ = 493433141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493465939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246732954 + 246732955.

It is an arithmetic number, because the mean of its divisors is an integer number (246732955).

Almost surely, 2^493465909 is an apocalyptic number.

It is an amenable number.

493465909 is a deficient number, since it is larger than the sum of its proper divisors (1).

493465909 is an equidigital number, since it uses as much as digits as its factorization.

493465909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 493465909 is about 22214.0925765605. The cubic root of 493465909 is about 790.2279473604.

It can be divided in two parts, 49346 and 5909, that added together give a palindrome (55255).

The spelling of 493465909 in words is "four hundred ninety-three million, four hundred sixty-five thousand, nine hundred nine".